package cn.yqx.bankshop.remote;

import cn.yqx.bankshop.constants.CommonConstant;
import cn.yqx.bankshop.constants.HttpConstant;
import com.alibaba.fastjson.JSONObject;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.util.HashMap;
import java.util.Map;

public class LogisticsRemote {

    private static final String CLIENT =  "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)" ;
    private static final String APPLICATION_FORM = "application/x-www-form-urlencoded" ;
    private static final String ORDER_CODE_KEY = "OrderCode" ;
    private static final String SHIPPER_CODE_KEY = "ShipperCode" ;
    private static final String LOGISTIC_CODE_KEY = "LogisticCode" ;
    private static final String REQUEST_DATA_KEY = "RequestData";
    private static final String E_BUSINESS_ID_KEY = "EBusinessID" ;
    private static final String REQUEST_TYPE_KEY = "RequestType" ;
    private static final String DATA_SIGN_KEY = "DataSign" ;
    private static final String DATA_TYPE_KEY = "DataType" ;
    private static final String REQUEST_TYPE_CODE = "1002" ;
    private static final String DATA_TYPE_CODE = "2" ;
    private static final String MD5_KEY = "MD5" ;
    private static final String EBUSINESS_ID_KEY = "1459660" ;
    private static final String APP_KEY = "de956806-47d2-44b4-8919-8c2b75794585" ;
    private static final String REQ_URL = "http://api.kdniao.com/Ebusiness/EbusinessOrderHandle.aspx" ;
    public static void main(String[] args) {
        LogisticsRemote api = new LogisticsRemote();
        try {
            String result = api.getOrderTracesByJson("STO", "773091555337557");
            System.out.println(result);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    public String getOrderTracesByJson(String expCode, String expNo) throws Exception{

        JSONObject json = new JSONObject() ;
        json.put(ORDER_CODE_KEY,"") ;
        json.put(SHIPPER_CODE_KEY,expCode) ;
        json.put(LOGISTIC_CODE_KEY,expNo) ;
        Map<String, String> params = new HashMap<String, String>();
        params.put(REQUEST_DATA_KEY, urlEncoder(json.toJSONString(), CommonConstant.UTF8));
        params.put(E_BUSINESS_ID_KEY, EBUSINESS_ID_KEY);
        params.put(REQUEST_TYPE_KEY, REQUEST_TYPE_CODE);
        String dataSign=encrypt(json.toJSONString(), APP_KEY, CommonConstant.UTF8);
        params.put(DATA_SIGN_KEY, urlEncoder(dataSign, CommonConstant.UTF8));
        params.put(DATA_TYPE_KEY, DATA_TYPE_CODE);

        String result=sendPost(REQ_URL, params);
        return result;
    }
    /**
     * Json方式 查询订单物流轨迹
     * @throws Exception
     */
    public String getOrderTracesByJson(String expCode, String expNo,String EBusinessID,String AppKey,String ReqURL ) throws Exception{

        JSONObject json = new JSONObject() ;
        json.put(ORDER_CODE_KEY,"") ;
        json.put(SHIPPER_CODE_KEY,expCode) ;
        json.put(LOGISTIC_CODE_KEY,expNo) ;
        Map<String, String> params = new HashMap<String, String>();
        params.put(REQUEST_DATA_KEY, urlEncoder(json.toJSONString(), CommonConstant.UTF8));
        params.put(E_BUSINESS_ID_KEY, EBusinessID);
        params.put(REQUEST_TYPE_KEY, REQUEST_TYPE_CODE);
        String dataSign=encrypt(json.toJSONString(), AppKey, CommonConstant.UTF8);
        params.put(DATA_SIGN_KEY, urlEncoder(dataSign, CommonConstant.UTF8));
        params.put(DATA_TYPE_KEY, DATA_TYPE_CODE);

        String result=sendPost(ReqURL, params);
        return result;
    }

    /**
     * MD5加密
     * @param str 内容
     * @param charset 编码方式
     * @throws Exception
     */

    private String MD5(String str, String charset) throws Exception {
        MessageDigest md = MessageDigest.getInstance(MD5_KEY);
        md.update(str.getBytes(charset));
        byte[] result = md.digest();
        StringBuffer sb = new StringBuffer(32);
        for (int i = 0; i < result.length; i++) {
            int val = result[i] & 0xff;
            if (val <= 0xf) {
                sb.append("0");
            }
            sb.append(Integer.toHexString(val));
        }
        return sb.toString().toLowerCase();
    }

    /**
     * base64编码
     * @param str 内容
     * @param charset 编码方式
     * @throws UnsupportedEncodingException
     */
    private String base64(String str, String charset) throws UnsupportedEncodingException{
        String encoded = base64Encode(str.getBytes(charset));
        return encoded;
    }


    private String urlEncoder(String str, String charset) throws UnsupportedEncodingException{
        String result = URLEncoder.encode(str, charset);
        return result;
    }

    /**
     * 电商Sign签名生成
     * @param content 内容
     * @param keyValue Appkey
     * @param charset 编码方式
     * @throws UnsupportedEncodingException ,Exception
     * @return DataSign签名
     */

    private String encrypt (String content, String keyValue, String charset) throws UnsupportedEncodingException, Exception
    {
        if (keyValue != null)
        {
            return base64(MD5(content + keyValue, charset), charset);
        }
        return base64(MD5(content, charset), charset);
    }

    /**
     * 向指定 URL 发送POST方法的请求
     * @param url 发送请求的 URL
     * @param params 请求的参数集合
     * @return 远程资源的响应结果
     */
    private String sendPost(String url, Map<String, String> params) {
        OutputStreamWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        try {
            URL realUrl = new URL(url);
            HttpURLConnection conn =(HttpURLConnection) realUrl.openConnection();
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // POST方法
            conn.setRequestMethod(HttpConstant.POST);
            // 设置通用的请求属性
            conn.setRequestProperty(HttpConstant.ACCEPT, "*/*");
            conn.setRequestProperty(HttpConstant.CONNECTION, HttpConstant.KEEP_ALIVE);
            conn.setRequestProperty(HttpConstant.USER_AGENT,
                    CLIENT);
            conn.setRequestProperty(HttpConstant.CONTENT_TYPE, APPLICATION_FORM);
            conn.connect();
            // 获取URLConnection对象对应的输出流
            out = new OutputStreamWriter(conn.getOutputStream(), CommonConstant.UTF8);
            // 发送请求参数
            if (params != null) {
                StringBuilder param = new StringBuilder();
                for (Map.Entry<String, String> entry : params.entrySet()) {
                    if(param.length()>0){
                        param.append("&");
                    }
                    param.append(entry.getKey());
                    param.append("=");
                    param.append(entry.getValue());
                }
                out.write(param.toString());
            }
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream(), CommonConstant.UTF8));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result.toString();
    }


    private static char[] base64EncodeChars = new char[] {
            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
            'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
            'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
            'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
            'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
            'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
            'w', 'x', 'y', 'z', '0', '1', '2', '3',
            '4', '5', '6', '7', '8', '9', '+', '/' };

    public static String base64Encode(byte[] data) {
        StringBuffer sb = new StringBuffer();
        int len = data.length;
        int i = 0;
        int b1, b2, b3;
        while (i < len) {
            b1 = data[i++] & 0xff;
            if (i == len)
            {
                sb.append(base64EncodeChars[b1 >>> 2]);
                sb.append(base64EncodeChars[(b1 & 0x3) << 4]);
                sb.append("==");
                break;
            }
            b2 = data[i++] & 0xff;
            if (i == len)
            {
                sb.append(base64EncodeChars[b1 >>> 2]);
                sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
                sb.append(base64EncodeChars[(b2 & 0x0f) << 2]);
                sb.append("=");
                break;
            }
            b3 = data[i++] & 0xff;
            sb.append(base64EncodeChars[b1 >>> 2]);
            sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
            sb.append(base64EncodeChars[((b2 & 0x0f) << 2) | ((b3 & 0xc0) >>> 6)]);
            sb.append(base64EncodeChars[b3 & 0x3f]);
        }
        return sb.toString();
    }
}
